Greeley Threshold Days by Year (USC00253425)

18 fixed thresholds counted per year at Greeley (USC00253425): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Greeley Thresholds

Greeley: days with 10 mm (0.39 in) or more of precipitation in 95 years, most in 1993 with 33.
Greeley: days with 25 mm (0.98 in) or more of precipitation in 95 years, most in 1977 with 12.
Greeley: days with a maximum temperature at or above 30 C (86 F) in 78 years, most in 1980 with 101.
Greeley: days with a maximum temperature at or above 90 F (32.2 C) in 78 years, most in 1983 with 71.
18 fixed thresholds have at least one qualifying day at Greeley.

Days at or above 30 C (86 F)

78 years with a qualifying day

Days per year at Greeley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 101 in 1980.

Days at or above 30 C (86 F) per year at Greeley
Year	Days	Decade average
1908	52	58.5
1909	65	58.5
1910	60	57.5
1911	54	57.5
1912	47	57.5
1913	69	57.5
1928	74	74
1953	74	72.3
1955	82	72.3
1956	80	72.3
1957	66	72.3
1958	53	72.3
1959	79	72.3
1960	66	65.9
1961	69	65.9
1962	66	65.9
1963	81	65.9
1964	69	65.9
1965	57	65.9
1966	62	65.9
1967	55	65.9
1968	77	65.9
1969	57	65.9
1970	95	71.9
1971	74	71.9
1972	70	71.9
1973	69	71.9
1974	71	71.9
1975	69	71.9
1976	80	71.9
1977	59	71.9
1978	71	71.9
1979	61	71.9
1980	101	62.9
1981	68	62.9
1982	53	62.9
1983	87	62.9
1984	60	62.9
1985	38	62.9
1986	37	62.9
1987	66	62.9
1988	71	62.9
1989	48	62.9
1990	63	50.8
1991	76	50.8
1993	26	50.8
1994	48	50.8
1996	22	50.8
1997	57	50.8
1998	68	50.8
1999	46	50.8
2000	66	58.8
2001	63	58.8
2002	76	58.8
2003	62	58.8
2004	51	58.8
2005	73	58.8
2006	69	58.8
2007	60	58.8
2008	36	58.8
2009	32	58.8
2010	56	51.2
2011	49	51.2
2012	80	51.2
2013	48	51.2
2014	27	51.2
2015	45	51.2
2016	55	51.2
2017	55	51.2
2018	52	51.2
2019	45	51.2
2020	75	67.6
2021	66	67.6
2022	84	67.6
2023	63	67.6
2024	50	67.6
2025	57	67.6
2026	78	67.6

For each year, a bar from the first to the last day at Greeley meeting 30 C (86 F).

First to last qualifying date each year at Greeley
Year	First date	Last date
1908	1908-04-12	1908-10-15
1909	1909-05-04	1909-10-06
1910	1910-03-21	1910-10-16
1911	1911-05-09	1911-09-13
1912	1912-05-19	1912-09-08
1913	1913-05-27	1913-09-07
1928	1928-03-23	1928-10-10
1953	1953-04-21	1953-10-10
1955	1955-04-26	1955-09-19
1956	1956-05-10	1956-10-12
1957	1957-06-03	1957-09-30
1958	1958-05-11	1958-10-19
1959	1959-04-04	1959-09-20
1960	1960-04-21	1960-10-11
1961	1961-05-12	1961-10-17
1962	1962-04-20	1962-10-11
1963	1963-04-01	1963-10-10
1964	1964-04-16	1964-10-20
1965	1965-04-20	1965-10-09
1966	1966-05-04	1966-10-12
1967	1967-03-24	1967-10-03
1968	1968-03-30	1968-10-29
1969	1969-05-27	1969-09-26
1970	1970-05-17	1970-09-30
1971	1971-06-12	1971-10-10
1972	1972-04-06	1972-10-02
1973	1973-05-18	1973-10-22
1974	1974-04-25	1974-10-10
1975	1975-05-20	1975-10-13
1976	1976-05-19	1976-10-01
1977	1977-04-10	1977-09-09
1978	1978-05-24	1978-10-20
1979	1979-05-28	1979-10-01
1980	1980-04-19	1980-10-10
1981	1981-04-25	1981-09-29
1982	1982-06-24	1982-09-29
1983	1983-05-24	1983-09-28
1984	1984-06-01	1984-09-24
1985	1985-04-16	1985-09-19
1986	1986-03-29	1986-09-04
1987	1987-04-19	1987-10-05
1988	1988-05-13	1988-09-27
1989	1989-04-21	1989-10-15
1990	1990-04-23	1990-10-06
1991	1991-04-06	1991-10-23
1993	1993-06-17	1993-09-13
1994	1994-04-18	1994-09-30
1996	1996-05-18	1996-09-11
1997	1997-05-16	1997-10-07
1998	1998-05-05	1998-09-30
1999	1999-06-05	1999-09-26
2000	2000-05-23	2000-10-01
2001	2001-04-27	2001-10-03
2002	2002-04-16	2002-10-01
2003	2003-04-02	2003-10-23
2004	2004-04-19	2004-09-20
2005	2005-05-20	2005-10-19
2006	2006-04-14	2006-10-04
2007	2007-04-30	2007-10-07
2008	2008-06-15	2008-09-27
2009	2009-04-24	2009-08-25
2010	2010-05-23	2010-10-09
2011	2011-05-09	2011-10-05
2012	2012-04-02	2012-10-04
2013	2013-04-29	2013-09-19
2014	2014-05-27	2014-09-20
2015	2015-03-17	2015-10-12
2016	2016-06-09	2016-09-24
2017	2017-05-08	2017-09-24
2018	2018-05-23	2018-10-04
2019	2019-04-21	2019-10-01
2020	2020-05-02	2020-10-10
2021	2021-05-02	2021-09-29
2022	2022-04-13	2022-10-24
2023	2023-04-13	2023-10-03
2024	2024-05-18	2024-10-03
2025	2025-03-29	2025-10-05
2026	2026-03-21	2026-10-12

Every Fixed Threshold

Fixed thresholds at Greeley
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	78	101	1980	78
35 C (95 F): Days	76	43	1955	10
40 C (104 F): Days	19	8	1955	1
90 F (32.2 C): Days	78	71	1983	33
100 F (37.8 C): Days	55	18	1955	2
0 C (32 F): Ice days (max	78	70	1975	16
0 C (32 F): Frost days (min	75	188	2013	90
-10 C (14 F): Days with min	75	90	2022	31
-20 C (-4 F): Days with min	75	27	1996	8
-30 C (-22 F): Days with min	17	5	1996	4
20 C (68 F): Tropical nights (min	74	34	1955	19
25 C (77 F): Days with min	2	2	1953	1
10 mm (0.39 in): Days with 10 mm or more rain	95	33	1993	22
25 mm (0.98 in): Days with 25 mm or more rain	95	12	1977	6
50 mm (1.97 in): Days with 50 mm or more rain	62	4	1993	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1897	1
10 cm (3.9 in): Days with 10 cm or more snowfall	42	5	2005	2
25 cm (9.8 in): Days with 25 cm or more snowfall	10	1	1950	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1908.

Download the Data

Data for Greeley threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Greeley Threshold Days by Year (USC00253425)

Key Facts for Greeley Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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